Quick PHP Scripts: Automated Add/Remove e-mail mailing list. Volume 2

This code will maintain an E-mail mailing list. This can be used as a mailing list or to gather user’s emails who wish to be removed from your mailing lists. This code will also check (and not add) duplicates. Sending emails to this mailing list will be in a future e-book in the series.
?

his is a very simple script to automate a web-based user mailing list or remove list. This e-Book Includes: SQL, PHP, and HTML code that you can paste. All this code was used and tested with Network Solutions servers (which include free SQL server with basic hosting).

What you need:
Some minor understanding and access to your SQL server and web server is required to get this script working, as well as some understanding of how to cut and paste.